1 / 10

TRIG – THE EASY WAY

TRIG – THE EASY WAY. Trig functions. To remember the trigonometry functions, use the memory aid: Soh Cah Toa The first letter of each aid represents the function. The last two letters indicates the ratio of sides needed to calculate the function.

blaine
Download Presentation

TRIG – THE EASY WAY

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. TRIG – THE EASY WAY

  2. Trig functions To remember the trigonometry functions, use the memory aid: Soh Cah Toa The first letter of each aid represents the function. The last two letters indicates the ratio of sides needed to calculate the function. Soh --> Sine = opposite/hypotenuse Cah --> Cosine = adjacent/hypotenuse Toa --> Tangent = opposite/adjacent We can use trigonometry functions to determine: • one acute angle if you know two sides • one of the sides if you know an acute angle and one side

  3. HYPOTENUSE, OPP. LEG,& ADJ. LEG HYPOTENUSE OPP. LEG ADJ. LEG

  4. TO FIND A MISSING SIDE 21 ? 42°

  5. Determine what trig function to use Set up the equation that solves the situation Solve the equation and round answer appropriately THE PROCESS 21 ? 42°

  6. DETERMINING THE FUNCTION hypotenuse 21 ? Opp 42° Opposite / hypotenuse >>>>>>>>> SINE

  7. solution • Sin 42° = x / 21 • .6691  = x / 21 • X = (.6691) (21) • X= 14.0511 • X= 14.1

  8. TO FIND A MISSING ANGLE 8 ? 15

  9. DETERMINE THE FUNCTION. OPPOSITE 8 ? 15 ADJACENT OPPOSITE / ADJACENT >>>>>>>>> TANGENT

  10. Determine the function ----> Tangent Write the equation ----------> Tan D = 8 / 15 Solve the equation ---------> Tan D = .5333 Note : you must use the inverse of tangent to find the angle: tan-1 or arctan on your calculator. ‹D = tan-1(0.5333) ‹D = 28.072487 ‹D = 28º PROCESS AND SOLUTION

More Related